plugin-constraints.cjs

/* eslint-disable */
module.exports = {
  name: "@yarnpkg/plugin-constraints",
  factory: function (require) {
  var plugin;plugin=(()=>{var e={3652:(e,r,t)=>{"use strict";t.r(r),t.d(r,{default:()=>F});const n=require("@yarnpkg/core");function i(e,r,t,n){var i,a=arguments.length,s=a<3?r:null===n?n=Object.getOwnPropertyDescriptor(r,t):n;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)s=Reflect.decorate(e,r,t,n);else for(var o=e.length-1;o>=0;o--)(i=e[o])&&(s=(a<3?i(s):a>3?i(r,t,s):i(r,t))||s);return a>3&&s&&Object.defineProperty(r,t,s),s}const a=require("@yarnpkg/cli"),s=require("clipanion"),o=require("@yarnpkg/fslib");var p=t(5047),l=t.n(p),u=t(3465),c=t.n(u),y=t(4674),_=t.n(y);const f=require("vm");var d=t.n(f);const{is_atom:w,is_variable:h,is_instantiated_list:g}=c().type;function m(e,r,t){e.prepend(t.map(e=>new(c().type.State)(r.goal.replace(e),r.substitution,r)))}const v=new WeakMap;function b(e){const r=v.get(e.session);if(null==r)throw new Error("Assertion failed: A project should have been registered for the active session");return r}const x=new(c().type.Module)("constraints",{"project_workspaces_by_descriptor/3":(e,r,t)=>{const[i,a,s]=t.args;if(!w(i)||!w(a))return void e.throwError(c().error.instantiation(t.indicator));const o=n.structUtils.parseIdent(i.id),p=n.structUtils.makeDescriptor(o,a.id),l=b(e).tryWorkspaceByDescriptor(p);h(s)&&null!==l&&m(e,r,[new(c().type.Term)("=",[s,new(c().type.Term)(String(l.relativeCwd))])]),w(s)&&null!==l&&l.relativeCwd===s.id&&e.success(r)},"workspace_field/3":(e,r,t)=>{const[n,i,a]=t.args;if(!w(n)||!w(i))return void e.throwError(c().error.instantiation(t.indicator));const s=b(e).tryWorkspaceByCwd(n.id);if(null==s)return;const o=_()(s.manifest.raw,i.id);void 0!==o&&m(e,r,[new(c().type.Term)("=",[a,new(c().type.Term)(String(o))])])},"workspace_field_test/3":(e,r,t)=>{const[n,i,a]=t.args;e.prepend([new(c().type.State)(r.goal.replace(new(c().type.Term)("workspace_field_test",[n,i,a,new(c().type.Term)("[]",[])])),r.substitution,r)])},"workspace_field_test/4":(e,r,t)=>{const[n,i,a,s]=t.args;if(!(w(n)&&w(i)&&w(a)&&g(s)))return void e.throwError(c().error.instantiation(t.indicator));const o=b(e).tryWorkspaceByCwd(n.id);if(null==o)return;const p=_()(o.manifest.raw,i.id);if(void 0===p)return;const l={$$:p};for(const[e,r]of s.toJavaScript().entries())l["$"+e]=r;d().runInNewContext(a.id,l)&&e.success(r)}},["project_workspaces_by_descriptor/3","workspace_field/3","workspace_field_test/3","workspace_field_test/4"]);var T;l()(c()),function(e){e.Dependencies="dependencies",e.DevDependencies="devDependencies",e.PeerDependencies="peerDependencies"}(T||(T={}));const V=[T.Dependencies,T.DevDependencies,T.PeerDependencies];function k(e){let r;try{r=function e(r){if(r instanceof c().type.Num)return r.value;if(r instanceof c().type.Term){if(0===r.args.length)return r.id;switch(r.indicator){case"throw/1":case"error/1":return e(r.args[0]);case"error/2":return Object.assign(e(r.args[0]),...e(r.args[1]));case"syntax_error/1":return new n.ReportError(n.MessageName.PROLOG_SYNTAX_ERROR,"Syntax error: "+e(r.args[0]));case"existence_error/2":return new n.ReportError(n.MessageName.PROLOG_EXISTENCE_ERROR,`Existence error: ${e(r.args[0])} ${e(r.args[1])} not found`);case"line/1":return{line:e(r.args[0])};case"column/1":return{column:e(r.args[0])};case"found/1":return{found:e(r.args[0])};case"./2":return[e(r.args[0])].concat(e(r.args[1]));case"//2":return`${e(r.args[0])}/${e(r.args[1])}`}}throw"couldn't pretty print because of unsupported node "+r}(e)}catch(r){throw"string"==typeof r?new n.ReportError(n.MessageName.PROLOG_UNKNOWN_ERROR,`Unknown error: ${e} (note: ${r})`):r}return void 0!==r.line&&void 0!==r.column&&(r.message+=` at line ${r.line}, column ${r.column}`),r}class S{constructor(e,r){this.session=c().create(),function(e,r){v.set(e,r),e.consult(`:- use_module(library(${x.id})).`)}(this.session,e),this.session.consult(":- use_module(library(lists))."),this.session.consult(r)}fetchNextAnswer(){return new Promise(e=>{this.session.answer(r=>{e(r)})})}async*makeQuery(e){const r=this.session.query(e);if(!0!==r)throw k(r);for(;;){const e=await this.fetchNextAnswer();if(!e)break;if("throw"===e.id)throw k(e);yield e}}}function O(e){return"null"===e.id?null:""+e.toJavaScript()}function E(e){if("null"===e.id)return null;{const r=e.toJavaScript();if("string"!=typeof r)return JSON.stringify(r);try{return JSON.stringify(JSON.parse(r))}catch(e){return JSON.stringify(r)}}}class P{constructor(e){this.source="",this.project=e;const r=e.configuration.get("constraintsPath");o.xfs.existsSync(r)&&(this.source=o.xfs.readFileSync(r,"utf8"))}static async find(e){return new P(e)}getProjectDatabase(){let e="";for(const r of V)e+=`dependency_type(${r}).\n`;for(const r of this.project.workspacesByCwd.values()){const t=r.relativeCwd;e+=`workspace(${C(t)}).\n`,e+=`workspace_ident(${C(t)}, ${C(n.structUtils.stringifyIdent(r.locator))}).\n`,e+=`workspace_version(${C(t)}, ${C(r.manifest.version)}).\n`;for(const i of V)for(const a of r.manifest[i].values())e+=`workspace_has_dependency(${C(t)}, ${C(n.structUtils.stringifyIdent(a))}, ${C(a.range)}, ${i}).\n`}return e+="workspace(_) :- false.\n",e+="workspace_ident(_, _) :- false.\n",e+="workspace_version(_, _) :- false.\n",e+="workspace_has_dependency(_, _, _, _) :- false.\n",e}getDeclarations(){let e="";return e+="gen_enforced_dependency(_, _, _, _) :- false.\n",e+="gen_enforced_field(_, _, _) :- false.\n","gen_enforced_dependency(_, _, _, _) :- false.\ngen_enforced_field(_, _, _) :- false.\n"}get fullSource(){return`${this.getProjectDatabase()}\n${this.source}\n${this.getDeclarations()}`}createSession(){return new S(this.project,this.fullSource)}async process(){const e=this.createSession();return{enforcedDependencies:await this.genEnforcedDependencies(e),enforcedFields:await this.genEnforcedFields(e)}}async genEnforcedDependencies(e){const r=[];for await(const t of e.makeQuery("workspace(WorkspaceCwd), dependency_type(DependencyType), gen_enforced_dependency(WorkspaceCwd, DependencyIdent, DependencyRange, DependencyType).")){const e=o.ppath.resolve(this.project.cwd,O(t.links.WorkspaceCwd)),i=O(t.links.DependencyIdent),a=O(t.links.DependencyRange),s=O(t.links.DependencyType);if(null===e||null===i)throw new Error("Invalid rule");const p=this.project.getWorkspaceByCwd(e),l=n.structUtils.parseIdent(i);r.push({workspace:p,dependencyIdent:l,dependencyRange:a,dependencyType:s})}return n.miscUtils.sortMap(r,[({dependencyRange:e})=>null!==e?"0":"1",({workspace:e})=>n.structUtils.stringifyIdent(e.locator),({dependencyIdent:e})=>n.structUtils.stringifyIdent(e)])}async genEnforcedFields(e){const r=[];for await(const t of e.makeQuery("workspace(WorkspaceCwd), gen_enforced_field(WorkspaceCwd, FieldPath, FieldValue).")){const e=o.ppath.resolve(this.project.cwd,O(t.links.WorkspaceCwd)),n=O(t.links.FieldPath),i=E(t.links.FieldValue);if(null===e||null===n)throw new Error("Invalid rule");const a=this.project.getWorkspaceByCwd(e);r.push({workspace:a,fieldPath:n,fieldValue:i})}return n.miscUtils.sortMap(r,[({workspace:e})=>n.structUtils.stringifyIdent(e.locator),({fieldPath:e})=>e])}async*query(e){const r=this.createSession();for await(const t of r.makeQuery(e)){const e={};for(const[r,n]of Object.entries(t.links))"_"!==r&&(e[r]=O(n));yield e}}}function C(e){return"string"==typeof e?`'${e}'`:"[]"}class N extends a.BaseCommand{constructor(){super(...arguments),this.json=!1}async execute(){const e=await n.Configuration.find(this.context.cwd,this.context.plugins),{project:r}=await n.Project.find(e,this.context.cwd),t=await P.find(r);let i=this.query;i.endsWith(".")||(i+=".");return(await n.StreamReport.start({configuration:e,json:this.json,stdout:this.context.stdout},async e=>{for await(const r of t.query(i)){const t=Array.from(Object.entries(r)),n=t.length,i=t.reduce((e,[r])=>Math.max(e,r.length),0);for(let r=0;r<n;r++){const[a,s]=t[r];e.reportInfo(null,`${R(r,n)}${a.padEnd(i," ")} = ${I(s)}`)}e.reportJson(r)}})).exitCode()}}function I(e){return"string"!=typeof e?""+e:e.match(/^[a-zA-Z][a-zA-Z0-9_]+$/)?e:`'${e}'`}function R(e,r){const t=0===e,n=e===r-1;return t&&n?"":t?"┌ ":n?"└ ":"│ "}N.usage=s.Command.Usage({category:"Constraints-related commands",description:"query the constraints fact database",details:"\n      This command will output all matches to the given prolog query.\n    ",examples:[["List all dependencies throughout the workspace","yarn constraints query 'workspace_has_dependency(_, DependencyName, _, _).'"]]}),i([s.Command.Boolean("--json",{description:"Format the output as an NDJSON stream"})],N.prototype,"json",void 0),i([s.Command.String()],N.prototype,"query",void 0),i([s.Command.Path("constraints","query")],N.prototype,"execute",null);class A extends a.BaseCommand{constructor(){super(...arguments),this.verbose=!1}async execute(){const e=await n.Configuration.find(this.context.cwd,this.context.plugins),{project:r}=await n.Project.find(e,this.context.cwd),t=await P.find(r);this.context.stdout.write(this.verbose?t.fullSource:t.source)}}A.usage=s.Command.Usage({category:"Constraints-related commands",description:"print the source code for the constraints",details:"\n      This command will print the Prolog source code used by the constraints engine. Adding the `-v,--verbose` flag will print the *full* source code, including the fact database automatically compiled from the workspace manifests.\n    ",examples:[["Prints the source code","yarn constraints source"],["Print the source code and the fact database","yarn constraints source -v"]]}),i([s.Command.Boolean("-v,--verbose",{description:"Also print the fact database automatically compiled from the workspace manifests"})],A.prototype,"verbose",void 0),i([s.Command.Path("constraints","source")],A.prototype,"execute",null);var $=t(1534),M=t.n($),j=t(404),X=t.n(j);class D extends a.BaseCommand{constructor(){super(...arguments),this.fix=!1}async execute(){const e=await n.Configuration.find(this.context.cwd,this.context.plugins),{project:r}=await n.Project.find(e,this.context.cwd),t=await P.find(r),i=await n.StreamReport.start({configuration:e,stdout:this.context.stdout},async r=>{let n=new Set,i=[];for(let r=0,a=this.fix?10:1;r<a;++r){i=[];const r=await t.process(),a=new Set;await B(a,i,r.enforcedDependencies,{fix:this.fix,configuration:e});for(const{manifest:e}of a){const r={};e.exportTo(r),e.raw=r}const s=new Set;await q(s,i,r.enforcedFields,{fix:this.fix,configuration:e});for(const{manifest:e}of s)e.load(e.raw);if(n=new Set([...n,...a,...s]),0===a.size&&0===s.size)break}await Promise.all([...n].map(async e=>{await e.persistManifest()}));for(const[e,t]of i)r.reportError(e,t)});return i.hasErrors()?i.exitCode():0}}async function B(e,r,t,{configuration:i,fix:a}){const s=new Map,o=new Map;for(const{workspace:e,dependencyIdent:r,dependencyRange:n,dependencyType:i}of t){let t=o.get(e);void 0===t&&o.set(e,t=new Map);let a=t.get(r.identHash);void 0===a&&t.set(r.identHash,a=new Map);let p=a.get(i);void 0===p&&a.set(i,p=new Set),s.set(r.identHash,r),p.add(n)}for(const[t,p]of o)for(const[o,l]of p){const p=s.get(o);if(void 0===p)throw new Error("Assertion failed: The ident should have been registered");for(const[s,o]of l){const l=o.has(null)?[null]:[...o];if(l.length>2)r.push([n.MessageName.CONSTRAINTS_AMBIGUITY,`${n.structUtils.prettyWorkspace(i,t)} must depend on ${n.structUtils.prettyIdent(i,p)} via conflicting ranges ${l.slice(0,-1).map(e=>n.structUtils.prettyRange(i,String(e))).join(", ")}, and ${n.structUtils.prettyRange(i,String(l[l.length-1]))} (in ${s})`]);else if(l.length>1)r.push([n.MessageName.CONSTRAINTS_AMBIGUITY,`${n.structUtils.prettyWorkspace(i,t)} must depend on ${n.structUtils.prettyIdent(i,p)} via conflicting ranges ${n.structUtils.prettyRange(i,String(l[0]))} and ${n.structUtils.prettyRange(i,String(l[1]))} (in ${s})`]);else{const o=t.manifest[s].get(p.identHash),[u]=l;null!==u?o?o.range!==u&&(a?(t.manifest[s].set(p.identHash,n.structUtils.makeDescriptor(p,u)),e.add(t)):r.push([n.MessageName.CONSTRAINTS_INCOMPATIBLE_DEPENDENCY,`${n.structUtils.prettyWorkspace(i,t)} must depend on ${n.structUtils.prettyIdent(i,p)} via ${n.structUtils.prettyRange(i,u)}, but uses ${n.structUtils.prettyRange(i,o.range)} instead (in ${s})`])):a?(t.manifest[s].set(p.identHash,n.structUtils.makeDescriptor(p,u)),e.add(t)):r.push([n.MessageName.CONSTRAINTS_MISSING_DEPENDENCY,`${n.structUtils.prettyWorkspace(i,t)} must depend on ${n.structUtils.prettyIdent(i,p)} (via ${n.structUtils.prettyRange(i,u)}), but doesn't (in ${s})`]):o&&(a?(t.manifest[s].delete(p.identHash),e.add(t)):r.push([n.MessageName.CONSTRAINTS_EXTRANEOUS_DEPENDENCY,`${n.structUtils.prettyWorkspace(i,t)} has an extraneous dependency on ${n.structUtils.prettyIdent(i,p)} (in ${s})`]))}}}}async function q(e,r,t,{configuration:i,fix:a}){const s=new Map;for(const{workspace:e,fieldPath:r,fieldValue:i}of t){const t=n.miscUtils.getMapWithDefault(s,e);n.miscUtils.getSetWithDefault(t,r).add(i)}for(const[t,o]of s)for(const[s,p]of o){const o=[...p];if(o.length>2)r.push([n.MessageName.CONSTRAINTS_AMBIGUITY,`${n.structUtils.prettyWorkspace(i,t)} must have a field ${n.formatUtils.pretty(i,s,"cyan")} set to conflicting values ${o.slice(0,-1).map(e=>n.formatUtils.pretty(i,String(e),"magenta")).join(", ")}, or ${n.formatUtils.pretty(i,String(o[o.length-1]),"magenta")}`]);else if(o.length>1)r.push([n.MessageName.CONSTRAINTS_AMBIGUITY,`${n.structUtils.prettyWorkspace(i,t)} must have a field ${n.formatUtils.pretty(i,s,"cyan")} set to conflicting values ${n.formatUtils.pretty(i,String(o[0]),"magenta")} or ${n.formatUtils.pretty(i,String(o[1]),"magenta")}`]);else{const p=_()(t.manifest.raw,s),[l]=o;null!==l?void 0===p?a?(await U(t,s,l),e.add(t)):r.push([n.MessageName.CONSTRAINTS_MISSING_FIELD,`${n.structUtils.prettyWorkspace(i,t)} must have a field ${n.formatUtils.pretty(i,s,"cyan")} set to ${n.formatUtils.pretty(i,String(l),"magenta")}, but doesn't`]):JSON.stringify(p)!==l&&(a?(await U(t,s,l),e.add(t)):r.push([n.MessageName.CONSTRAINTS_INCOMPATIBLE_FIELD,`${n.structUtils.prettyWorkspace(i,t)} must have a field ${n.formatUtils.pretty(i,s,"cyan")} set to ${n.formatUtils.pretty(i,String(l),"magenta")}, but is set to ${n.formatUtils.pretty(i,JSON.stringify(p),"magenta")} instead`])):null!=p&&(a?(await U(t,s,null),e.add(t)):r.push([n.MessageName.CONSTRAINTS_EXTRANEOUS_FIELD,`${n.structUtils.prettyWorkspace(i,t)} has an extraneous field ${n.formatUtils.pretty(i,s,"cyan")} set to ${n.formatUtils.pretty(i,JSON.stringify(p),"magenta")}`]))}}}async function U(e,r,t){null===t?X()(e.manifest.raw,r):M()(e.manifest.raw,r,JSON.parse(t))}D.usage=s.Command.Usage({category:"Constraints-related commands",description:"check that the project constraints are met",details:"\n      This command will run constraints on your project and emit errors for each one that is found but isn't met. If any error is emitted the process will exit with a non-zero exit code.\n\n      If the `--fix` flag is used, Yarn will attempt to automatically fix the issues the best it can, following a multi-pass process (with a maximum of 10 iterations). Some ambiguous patterns cannot be autofixed, in which case you'll have to manually specify the right resolution.\n\n      For more information as to how to write constraints, please consult our dedicated page on our website: https://yarnpkg.com/features/constraints.\n    ",examples:[["Check that all constraints are satisfied","yarn constraints"],["Autofix all unmet constraints","yarn constraints --fix"]]}),i([s.Command.Boolean("--fix",{description:"Attempt to automatically fix unambiguous issues, following a multi-pass process"})],D.prototype,"fix",void 0),i([s.Command.Path("constraints")],D.prototype,"execute",null);const F={configuration:{constraintsPath:{description:"The path of the constraints file.",type:n.SettingsType.ABSOLUTE_PATH,default:"./constraints.pro"}},commands:[N,A,D]}},2574:(e,r,t)=>{var n=t(1713),i=t(6688),a=t(5937),s=t(5017),o=t(9457);function p(e){var r=-1,t=null==e?0:e.length;for(this.clear();++r<t;){var 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m=w[g];if(m.variables.equals(c)){m.answers.push(y),l=!0;break}}l||w.push({variables:c,answers:[y]}),e.session.limit=e.current_limit}};e.__calls.unshift(h)}else e.throw_error(A.error.type("list",s,n.indicator));else e.throw_error(A.error.type("callable",a,n.indicator))},"setof/3":function(e,t,n){var i=n.args[0],a=n.args[1],s=n.args[2];if(A.type.is_variable(a))e.throw_error(A.error.instantiation(n.indicator));else if(A.type.is_callable(a))if(A.type.is_variable(s)||A.type.is_list(s)){var o,p=e.next_free_variable();"^/2"===a.indicator?(o=a.args[0].variables(),a=a.args[1]):o=[],o=o.concat(i.variables());for(var l=a.variables().filter((function(e){return-1===r(o,e)})),u=new k("[]"),c=l.length-1;c>=0;c--)u=new k(".",[new x(l[c]),u]);var y=new k(",",[a,new k("=",[p,new k(",",[u,i])])]),_=e.points,f=e.session.limit,d=e.session.format_success;e.session.format_success=function(e){return e.substitution},e.add_goal(y,!0,t);var w=[],h=function(r){if(!1===r||null===r||A.type.is_error(r)){if(e.points=_,e.session.limit=f,e.session.format_success=d,A.type.is_error(r))e.throw_error(r.args[0]);else if(e.current_limit>0){for(var n=[],i=0;i<w.length;i++){r=w[i].answers.sort(A.compare);for(var a=new k("[]"),o=r.length-1;o>=0;o--)a=new k(".",[r[o],a]);n.push(new P(t.goal.replace(new k(",",[new k("=",[u,w[i].variables]),new k("=",[s,a])])),t.substitution,t))}e.prepend(n)}}else{e.__calls.unshift(h);var l=!1,c=r.links[p.id].args[0],y=r.links[p.id].args[1];for(var g in w)if(w.hasOwnProperty(g)){var m=w[g];if(m.variables.equals(c)){m.answers.push(y),l=!0;break}}l||w.push({variables:c,answers:[y]}),e.session.limit=e.current_limit}};e.__calls.unshift(h)}else e.throw_error(A.error.type("list",s,n.indicator));else e.throw_error(A.error.type("callable",a,n.indicator))},"functor/3":function(e,r,t){var n=t.args[0],i=t.args[1],a=t.args[2];if(A.type.is_variable(n)&&(A.type.is_variable(i)||A.type.is_variable(a)))e.throw_error(A.error.instantiation("functor/3"));else if(A.type.is_variable(a)||A.type.is_integer(a))if(A.type.is_variable(i)||A.type.is_atomic(i))if(A.type.is_integer(i)&&A.type.is_integer(a)&&0!==a.value)e.throw_error(A.error.type("atom",t.args[1],"functor/3"));else if(A.type.is_variable(n)){if(t.args[2].value>=0){for(var s=[],o=0;o<a.value;o++)s.push(e.next_free_variable());var p=A.type.is_integer(i)?i:new k(i.id,s);e.prepend([new P(r.goal.replace(new k("=",[n,p])),r.substitution,r)])}}else{var l=A.type.is_integer(n)?n:new k(n.id,[]),u=A.type.is_integer(n)?new T(0,!1):new T(n.args.length,!1),c=new k(",",[new k("=",[l,i]),new k("=",[u,a])]);e.prepend([new P(r.goal.replace(c),r.substitution,r)])}else e.throw_error(A.error.type("atomic",t.args[1],"functor/3"));else e.throw_error(A.error.type("integer",t.args[2],"functor/3"))},"arg/3":function(e,r,t){if(A.type.is_variable(t.args[0])||A.type.is_variable(t.args[1]))e.throw_error(A.error.instantiation(t.indicator));else if(t.args[0].value<0)e.throw_error(A.error.domain("not_less_than_zero",t.args[0],t.indicator));else if(A.type.is_compound(t.args[1])){var n=t.args[0].value;if(n>0&&n<=t.args[1].args.length){var i=new k("=",[t.args[1].args[n-1],t.args[2]]);e.prepend([new P(r.goal.replace(i),r.substitution,r)])}}else e.throw_error(A.error.type("compound",t.args[1],t.indicator))},"=../2":function(e,r,t){var n;if(A.type.is_variable(t.args[0])&&(A.type.is_variable(t.args[1])||A.type.is_non_empty_list(t.args[1])&&A.type.is_variable(t.args[1].args[0])))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_fully_list(t.args[1]))if(A.type.is_variable(t.args[0])){if(!A.type.is_variable(t.args[1])){var i=[];for(n=t.args[1].args[1];"./2"===n.indicator;)i.push(n.args[0]),n=n.args[1];A.type.is_variable(t.args[0])&&A.type.is_variable(n)?e.throw_error(A.error.instantiation(t.indicator)):0===i.length&&A.type.is_compound(t.args[1].args[0])?e.throw_error(A.error.type("atomic",t.args[1].args[0],t.indicator)):i.length>0&&(A.type.is_compound(t.args[1].args[0])||A.type.is_number(t.args[1].args[0]))?e.throw_error(A.error.type("atom",t.args[1].args[0],t.indicator)):0===i.length?e.prepend([new P(r.goal.replace(new k("=",[t.args[1].args[0],t.args[0]],r)),r.substitution,r)]):e.prepend([new P(r.goal.replace(new k("=",[new k(t.args[1].args[0].id,i),t.args[0]])),r.substitution,r)])}}else{if(A.type.is_atomic(t.args[0]))n=new k(".",[t.args[0],new k("[]")]);else{n=new k("[]");for(var a=t.args[0].args.length-1;a>=0;a--)n=new k(".",[t.args[0].args[a],n]);n=new k(".",[new k(t.args[0].id),n])}e.prepend([new P(r.goal.replace(new k("=",[n,t.args[1]])),r.substitution,r)])}else e.throw_error(A.error.type("list",t.args[1],t.indicator))},"copy_term/2":function(e,r,t){var n=t.args[0].rename(e);e.prepend([new P(r.goal.replace(new k("=",[n,t.args[1]])),r.substitution,r.parent)])},"term_variables/2":function(e,r,t){var n=t.args[0],a=t.args[1];if(A.type.is_fully_list(a)){var s=g(i(m(n.variables()),(function(e){return new x(e)})));e.prepend([new P(r.goal.replace(new k("=",[a,s])),r.substitution,r)])}else e.throw_error(A.error.type("list",a,t.indicator))},"clause/2":function(e,r,t){if(A.type.is_variable(t.args[0]))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_callable(t.args[0]))if(A.type.is_variable(t.args[1])||A.type.is_callable(t.args[1])){if(void 0!==e.session.rules[t.args[0].indicator])if(e.is_public_predicate(t.args[0].indicator)){var n=[];for(var i in e.session.rules[t.args[0].indicator])if(e.session.rules[t.args[0].indicator].hasOwnProperty(i)){var a=e.session.rules[t.args[0].indicator][i];e.session.renamed_variables={},null===(a=a.rename(e)).body&&(a.body=new k("true"));var s=new k(",",[new k("=",[a.head,t.args[0]]),new k("=",[a.body,t.args[1]])]);n.push(new P(r.goal.replace(s),r.substitution,r))}e.prepend(n)}else e.throw_error(A.error.permission("access","private_procedure",t.args[0].indicator,t.indicator))}else e.throw_error(A.error.type("callable",t.args[1],t.indicator));else e.throw_error(A.error.type("callable",t.args[0],t.indicator))},"current_predicate/1":function(e,r,t){var n=t.args[0];if(A.type.is_variable(n)||A.type.is_compound(n)&&"//2"===n.indicator)if(A.type.is_variable(n)||A.type.is_variable(n.args[0])||A.type.is_atom(n.args[0]))if(A.type.is_variable(n)||A.type.is_variable(n.args[1])||A.type.is_integer(n.args[1])){var i=[];for(var a in e.session.rules)if(e.session.rules.hasOwnProperty(a)){var s=a.lastIndexOf("/"),o=a.substr(0,s),p=parseInt(a.substr(s+1,a.length-(s+1))),l=new k("/",[new k(o),new T(p,!1)]),u=new k("=",[l,n]);i.push(new P(r.goal.replace(u),r.substitution,r))}e.prepend(i)}else e.throw_error(A.error.type("integer",n.args[1],t.indicator));else e.throw_error(A.error.type("atom",n.args[0],t.indicator));else e.throw_error(A.error.type("predicate_indicator",n,t.indicator))},"asserta/1":function(e,r,t){if(A.type.is_variable(t.args[0]))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_callable(t.args[0])){var n,i;":-/2"===t.args[0].indicator?(n=t.args[0].args[0],i=h(t.args[0].args[1])):(n=t.args[0],i=null),A.type.is_callable(n)?null===i||A.type.is_callable(i)?e.is_public_predicate(n.indicator)?(void 0===e.session.rules[n.indicator]&&(e.session.rules[n.indicator]=[]),e.session.public_predicates[n.indicator]=!0,e.session.rules[n.indicator]=[new C(n,i,!0)].concat(e.session.rules[n.indicator]),e.success(r)):e.throw_error(A.error.permission("modify","static_procedure",n.indicator,t.indicator)):e.throw_error(A.error.type("callable",i,t.indicator)):e.throw_error(A.error.type("callable",n,t.indicator))}else e.throw_error(A.error.type("callable",t.args[0],t.indicator))},"assertz/1":function(e,r,t){if(A.type.is_variable(t.args[0]))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_callable(t.args[0])){var n,i;":-/2"===t.args[0].indicator?(n=t.args[0].args[0],i=h(t.args[0].args[1])):(n=t.args[0],i=null),A.type.is_callable(n)?null===i||A.type.is_callable(i)?e.is_public_predicate(n.indicator)?(void 0===e.session.rules[n.indicator]&&(e.session.rules[n.indicator]=[]),e.session.public_predicates[n.indicator]=!0,e.session.rules[n.indicator].push(new C(n,i,!0)),e.success(r)):e.throw_error(A.error.permission("modify","static_procedure",n.indicator,t.indicator)):e.throw_error(A.error.type("callable",i,t.indicator)):e.throw_error(A.error.type("callable",n,t.indicator))}else e.throw_error(A.error.type("callable",t.args[0],t.indicator))},"retract/1":function(e,r,t){if(A.type.is_variable(t.args[0]))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_callable(t.args[0])){var n,i;if(":-/2"===t.args[0].indicator?(n=t.args[0].args[0],i=t.args[0].args[1]):(n=t.args[0],i=new k("true")),void 0===r.retract)if(e.is_public_predicate(n.indicator)){if(void 0!==e.session.rules[n.indicator]){for(var a=[],s=0;s<e.session.rules[n.indicator].length;s++){e.session.renamed_variables={};var o=e.session.rules[n.indicator][s],p=o.rename(e);null===p.body&&(p.body=new k("true",[]));var l="true/0"===e.get_flag("occurs_check").indicator;if(null!==A.unify(new k(",",[n,i]),new k(",",[p.head,p.body]),l)){var u=new P(r.goal.replace(new k(",",[new k("retract",[new k(":-",[n,i])]),new k(",",[new k("=",[n,p.head]),new k("=",[i,p.body])])])),r.substitution,r);u.retract=o,a.push(u)}}e.prepend(a)}}else e.throw_error(A.error.permission("modify","static_procedure",n.indicator,t.indicator));else!function(e,r,t,n){if(null!==e.session.rules[t])for(var i=0;i<e.session.rules[t].length;i++)if(e.session.rules[t][i]===n){e.session.rules[t].splice(i,1),e.success(r);break}}(e,r,n.indicator,r.retract)}else e.throw_error(A.error.type("callable",t.args[0],t.indicator))},"retractall/1":function(e,r,t){var n=t.args[0];A.type.is_variable(n)?e.throw_error(A.error.instantiation(t.indicator)):A.type.is_callable(n)?e.prepend([new P(r.goal.replace(new k(",",[new k("retract",[new A.type.Term(":-",[n,new x("_")])]),new k("fail",[])])),r.substitution,r),new P(r.goal.replace(null),r.substitution,r)]):e.throw_error(A.error.type("callable",n,t.indicator))},"abolish/1":function(e,r,t){if(A.type.is_variable(t.args[0])||A.type.is_term(t.args[0])&&"//2"===t.args[0].indicator&&(A.type.is_variable(t.args[0].args[0])||A.type.is_variable(t.args[0].args[1])))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_term(t.args[0])&&"//2"===t.args[0].indicator)if(A.type.is_atom(t.args[0].args[0]))if(A.type.is_integer(t.args[0].args[1]))if(t.args[0].args[1].value<0)e.throw_error(A.error.domain("not_less_than_zero",t.args[0].args[1],t.indicator));else if(A.type.is_number(e.get_flag("max_arity"))&&t.args[0].args[1].value>e.get_flag("max_arity").value)e.throw_error(A.error.representation("max_arity",t.indicator));else{var n=t.args[0].args[0].id+"/"+t.args[0].args[1].value;e.is_public_predicate(n)?(delete e.session.rules[n],e.success(r)):e.throw_error(A.error.permission("modify","static_procedure",n,t.indicator))}else e.throw_error(A.error.type("integer",t.args[0].args[1],t.indicator));else e.throw_error(A.error.type("atom",t.args[0].args[0],t.indicator));else e.throw_error(A.error.type("predicate_indicator",t.args[0],t.indicator))},"atom_length/2":function(e,r,t){if(A.type.is_variable(t.args[0]))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_atom(t.args[0]))if(A.type.is_variable(t.args[1])||A.type.is_integer(t.args[1]))if(A.type.is_integer(t.args[1])&&t.args[1].value<0)e.throw_error(A.error.domain("not_less_than_zero",t.args[1],t.indicator));else{var n=new T(t.args[0].id.length,!1);e.prepend([new P(r.goal.replace(new k("=",[n,t.args[1]])),r.substitution,r)])}else e.throw_error(A.error.type("integer",t.args[1],t.indicator));else e.throw_error(A.error.type("atom",t.args[0],t.indicator))},"atom_concat/3":function(e,r,t){var n,i,a=t.args[0],s=t.args[1],o=t.args[2];if(A.type.is_variable(o)&&(A.type.is_variable(a)||A.type.is_variable(s)))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_variable(a)||A.type.is_atom(a))if(A.type.is_variable(s)||A.type.is_atom(s))if(A.type.is_variable(o)||A.type.is_atom(o)){var p=A.type.is_variable(a),l=A.type.is_variable(s);if(p||l)if(p&&!l)(n=o.id.substr(0,o.id.length-s.id.length))+s.id===o.id&&(i=new k("=",[a,new k(n)]),e.prepend([new P(r.goal.replace(i),r.substitution,r)]));else if(l&&!p)n=o.id.substr(a.id.length),a.id+n===o.id&&(i=new k("=",[s,new k(n)]),e.prepend([new P(r.goal.replace(i),r.substitution,r)]));else{for(var u=[],c=0;c<=o.id.length;c++){var y=new k(o.id.substr(0,c)),_=new k(o.id.substr(c));i=new k(",",[new k("=",[y,a]),new k("=",[_,s])]),u.push(new P(r.goal.replace(i),r.substitution,r))}e.prepend(u)}else i=new k("=",[o,new k(a.id+s.id)]),e.prepend([new P(r.goal.replace(i),r.substitution,r)])}else e.throw_error(A.error.type("atom",o,t.indicator));else e.throw_error(A.error.type("atom",s,t.indicator));else e.throw_error(A.error.type("atom",a,t.indicator))},"sub_atom/5":function(e,t,n){var i,a=n.args[0],s=n.args[1],o=n.args[2],p=n.args[3],l=n.args[4];if(A.type.is_variable(a))e.throw_error(A.error.instantiation(n.indicator));else if(A.type.is_variable(s)||A.type.is_integer(s))if(A.type.is_variable(o)||A.type.is_integer(o))if(A.type.is_variable(p)||A.type.is_integer(p))if(A.type.is_integer(s)&&s.value<0)e.throw_error(A.error.domain("not_less_than_zero",s,n.indicator));else if(A.type.is_integer(o)&&o.value<0)e.throw_error(A.error.domain("not_less_than_zero",o,n.indicator));else if(A.type.is_integer(p)&&p.value<0)e.throw_error(A.error.domain("not_less_than_zero",p,n.indicator));else{var u=[],c=[],y=[];if(A.type.is_variable(s))for(i=0;i<=a.id.length;i++)u.push(i);else u.push(s.value);if(A.type.is_variable(o))for(i=0;i<=a.id.length;i++)c.push(i);else c.push(o.value);if(A.type.is_variable(p))for(i=0;i<=a.id.length;i++)y.push(i);else y.push(p.value);var _=[];for(var f in u)if(u.hasOwnProperty(f))for(var d in i=u[f],c)if(c.hasOwnProperty(d)){var w=c[d],h=a.id.length-i-w;if(-1!==r(y,h)&&i+w+h===a.id.length){var g=a.id.substr(i,w);if(a.id===a.id.substr(0,i)+g+a.id.substr(i+w,h)){var m=new k("=",[new k(g),l]),v=new k("=",[s,new T(i)]),b=new k("=",[o,new T(w)]),x=new k("=",[p,new T(h)]),V=new k(",",[new k(",",[new k(",",[v,b]),x]),m]);_.push(new P(t.goal.replace(V),t.substitution,t))}}}e.prepend(_)}else e.throw_error(A.error.type("integer",p,n.indicator));else e.throw_error(A.error.type("integer",o,n.indicator));else e.throw_error(A.error.type("integer",s,n.indicator))},"atom_chars/2":function(e,r,t){var n=t.args[0],i=t.args[1];if(A.type.is_variable(n)&&A.type.is_variable(i))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_variable(n)||A.type.is_atom(n))if(A.type.is_variable(n)){for(var a=i,s=A.type.is_variable(n),o="";"./2"===a.indicator;){if(A.type.is_character(a.args[0]))o+=a.args[0].id;else{if(A.type.is_variable(a.args[0])&&s)return void e.throw_error(A.error.instantiation(t.indicator));if(!A.type.is_variable(a.args[0]))return void e.throw_error(A.error.type("character",a.args[0],t.indicator))}a=a.args[1]}A.type.is_variable(a)&&s?e.throw_error(A.error.instantiation(t.indicator)):A.type.is_empty_list(a)||A.type.is_variable(a)?e.prepend([new P(r.goal.replace(new k("=",[new k(o),n])),r.substitution,r)]):e.throw_error(A.error.type("list",i,t.indicator))}else{for(var p=new k("[]"),l=n.id.length-1;l>=0;l--)p=new k(".",[new k(n.id.charAt(l)),p]);e.prepend([new P(r.goal.replace(new k("=",[i,p])),r.substitution,r)])}else e.throw_error(A.error.type("atom",n,t.indicator))},"atom_codes/2":function(e,r,t){var n=t.args[0],i=t.args[1];if(A.type.is_variable(n)&&A.type.is_variable(i))e.throw_error(A.error.instantiation(t.indicator));else 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n=t.args[0],i=t.args[1];if(A.type.is_variable(n)&&A.type.is_variable(i))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_variable(n)||A.type.is_character(n))if(A.type.is_variable(i)||A.type.is_integer(i))if(A.type.is_variable(i)||A.type.is_character_code(i))if(A.type.is_variable(i)){var a=new T(s(n.id,0),!1);e.prepend([new P(r.goal.replace(new k("=",[a,i])),r.substitution,r)])}else{var p=new k(o(i.value));e.prepend([new P(r.goal.replace(new k("=",[p,n])),r.substitution,r)])}else e.throw_error(A.error.representation("character_code",t.indicator));else e.throw_error(A.error.type("integer",i,t.indicator));else e.throw_error(A.error.type("character",n,t.indicator))},"number_chars/2":function(e,r,t){var n,i=t.args[0],a=t.args[1];if(A.type.is_variable(i)&&A.type.is_variable(a))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_variable(i)||A.type.is_number(i))if(A.type.is_variable(a)||A.type.is_list(a)){var s=A.type.is_variable(i);if(!A.type.is_variable(a)){var o=a,p=!0;for(n="";"./2"===o.indicator;){if(A.type.is_character(o.args[0]))n+=o.args[0].id;else if(A.type.is_variable(o.args[0]))p=!1;else if(!A.type.is_variable(o.args[0]))return void e.throw_error(A.error.type("character",o.args[0],t.indicator));o=o.args[1]}if(p=p&&A.type.is_empty_list(o),!A.type.is_empty_list(o)&&!A.type.is_variable(o))return void e.throw_error(A.error.type("list",a,t.indicator));if(!p&&s)return void e.throw_error(A.error.instantiation(t.indicator));if(p){if(A.type.is_variable(o)&&s)return void e.throw_error(A.error.instantiation(t.indicator));var l=e.parse(n),u=l.value;return void(!A.type.is_number(u)||l.tokens[l.tokens.length-1].space?e.throw_error(A.error.syntax_by_predicate("parseable_number",t.indicator)):e.prepend([new P(r.goal.replace(new k("=",[i,u])),r.substitution,r)]))}}if(!s){n=i.toString();for(var c=new k("[]"),y=n.length-1;y>=0;y--)c=new k(".",[new k(n.charAt(y)),c]);e.prepend([new 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if(A.type.is_variable(n)||A.type.is_list(n))if(A.type.is_variable(s)||A.type.is_atom(s))if(A.type.is_variable(s)){for(var o="",p=n;A.type.is_term(p)&&"./2"===p.indicator;){if(!A.type.is_atom(p.args[0])&&!A.type.is_number(p.args[0]))return void e.throw_error(A.error.type("atomic",p.args[0],t.indicator));""!==o&&(o+=a.id),A.type.is_atom(p.args[0])?o+=p.args[0].id:o+=""+p.args[0].value,p=p.args[1]}o=new k(o,[]),A.type.is_variable(p)?e.throw_error(A.error.instantiation(t.indicator)):A.type.is_term(p)&&"[]/0"===p.indicator?e.prepend([new P(r.goal.replace(new k("=",[o,s])),r.substitution,r)]):e.throw_error(A.error.type("list",n,t.indicator))}else{var l=g(i(s.id.split(a.id),(function(e){return new k(e,[])})));e.prepend([new P(r.goal.replace(new k("=",[l,n])),r.substitution,r)])}else e.throw_error(A.error.type("atom",s,t.indicator));else e.throw_error(A.error.type("list",n,t.indicator))},"@=</2":function(e,r,t){A.compare(t.args[0],t.args[1])<=0&&e.success(r)},"==/2":function(e,r,t){0===A.compare(t.args[0],t.args[1])&&e.success(r)},"\\==/2":function(e,r,t){0!==A.compare(t.args[0],t.args[1])&&e.success(r)},"@</2":function(e,r,t){A.compare(t.args[0],t.args[1])<0&&e.success(r)},"@>/2":function(e,r,t){A.compare(t.args[0],t.args[1])>0&&e.success(r)},"@>=/2":function(e,r,t){A.compare(t.args[0],t.args[1])>=0&&e.success(r)},"compare/3":function(e,r,t){var n=t.args[0],i=t.args[1],a=t.args[2];if(A.type.is_variable(n)||A.type.is_atom(n))if(A.type.is_atom(n)&&-1===["<",">","="].indexOf(n.id))e.throw_error(A.type.domain("order",n,t.indicator));else{var s=A.compare(i,a);s=0===s?"=":-1===s?"<":">",e.prepend([new P(r.goal.replace(new k("=",[n,new k(s,[])])),r.substitution,r)])}else e.throw_error(A.error.type("atom",n,t.indicator))},"is/2":function(e,r,t){var n=t.args[1].interpret(e);A.type.is_number(n)?e.prepend([new 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n=t.args[0],i=t.args[1];A.type.is_variable(n)&&A.type.is_variable(i)?e.throw_error(A.error.instantiation(t.indicator)):A.type.is_variable(n)||A.type.is_integer(n)?A.type.is_variable(i)||A.type.is_integer(i)?!A.type.is_variable(n)&&n.value<0?e.throw_error(A.error.domain("not_less_than_zero",n,t.indicator)):!A.type.is_variable(i)&&i.value<0?e.throw_error(A.error.domain("not_less_than_zero",i,t.indicator)):(A.type.is_variable(i)||i.value>0)&&(A.type.is_variable(n)?e.prepend([new P(r.goal.replace(new k("=",[n,new T(i.value-1,!1)])),r.substitution,r)]):e.prepend([new P(r.goal.replace(new k("=",[i,new T(n.value+1,!1)])),r.substitution,r)])):e.throw_error(A.error.type("integer",i,t.indicator)):e.throw_error(A.error.type("integer",n,t.indicator))},"=:=/2":function(e,r,t){var n=A.arithmetic_compare(e,t.args[0],t.args[1]);A.type.is_term(n)?e.throw_error(n):0===n&&e.success(r)},"=\\=/2":function(e,r,t){var 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n=t.args[0],i=A.type.is_stream(n)?n:e.get_stream_by_alias(n.id);A.type.is_variable(n)?e.throw_error(A.error.instantiation(t.indicator)):A.type.is_variable(n)||A.type.is_stream(n)||A.type.is_atom(n)?A.type.is_stream(i)?!0===i.input?e.throw_error(A.error.permission("output","stream",n,t.indicator)):(e.set_current_output(i),e.success(r)):e.throw_error(A.error.existence("stream",n,t.indicator)):e.throw_error(A.error.domain("stream_or_alias",n,t.indicator))},"open/3":function(e,r,t){var n=t.args[0],i=t.args[1],a=t.args[2];e.prepend([new P(r.goal.replace(new k("open",[n,i,a,new k("[]",[])])),r.substitution,r)])},"open/4":function(e,r,t){var n=t.args[0],i=t.args[1],a=t.args[2],s=t.args[3];if(A.type.is_variable(n)||A.type.is_variable(i))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_variable(i)||A.type.is_atom(i))if(A.type.is_list(s))if(A.type.is_variable(a))if(A.type.is_atom(n)||A.type.is_streamable(n))if(A.type.is_io_mode(i)){for(var o,p={},l=s;A.type.is_term(l)&&"./2"===l.indicator;){if(o=l.args[0],A.type.is_variable(o))return void e.throw_error(A.error.instantiation(t.indicator));if(!A.type.is_stream_option(o))return void e.throw_error(A.error.domain("stream_option",o,t.indicator));p[o.id]=o.args[0].id,l=l.args[1]}if("[]/0"!==l.indicator)return void(A.type.is_variable(l)?e.throw_error(A.error.instantiation(t.indicator)):e.throw_error(A.error.type("list",s,t.indicator)));var u,c=p.alias;if(c&&e.get_stream_by_alias(c))return void e.throw_error(A.error.permission("open","source_sink",new k("alias",[new k(c,[])]),t.indicator));if(p.type||(p.type="text"),!1===(u=A.type.is_atom(n)?e.file_system_open(n.id,p.type,i.id):n.stream(p.type,i.id)))return void e.throw_error(A.error.permission("open","source_sink",n,t.indicator));if(null===u)return void e.throw_error(A.error.existence("source_sink",n,t.indicator));var y=new O(u,i.id,p.alias,p.type,"true"===p.reposition,p.eof_action);c?e.session.streams[c]=y:e.session.streams[y.id]=y,e.prepend([new P(r.goal.replace(new k("=",[a,y])),r.substitution,r)])}else e.throw_error(A.error.domain("io_mode",i,t.indicator));else e.throw_error(A.error.domain("source_sink",n,t.indicator));else e.throw_error(A.error.type("variable",a,t.indicator));else e.throw_error(A.error.type("list",s,t.indicator));else e.throw_error(A.error.type("atom",i,t.indicator))},"close/1":function(e,r,t){var n=t.args[0];e.prepend([new P(r.goal.replace(new k("close",[n,new k("[]",[])])),r.substitution,r)])},"close/2":function(e,r,t){var n=t.args[0],i=t.args[1],a=A.type.is_stream(n)?n:e.get_stream_by_alias(n.id);if(A.type.is_variable(n)||A.type.is_variable(i))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_list(i))if(A.type.is_stream(n)||A.type.is_atom(n))if(A.type.is_stream(a)&&null!==a.stream){for(var s,o={},p=i;A.type.is_term(p)&&"./2"===p.indicator;){if(s=p.args[0],A.type.is_variable(s))return void e.throw_error(A.error.instantiation(t.indicator));if(!A.type.is_close_option(s))return void e.throw_error(A.error.domain("close_option",s,t.indicator));o[s.id]="true"===s.args[0].id,p=p.args[1]}if("[]/0"!==p.indicator)return void(A.type.is_variable(p)?e.throw_error(A.error.instantiation(t.indicator)):e.throw_error(A.error.type("list",i,t.indicator)));if(a===e.session.standard_input||a===e.session.standard_output)return void e.success(r);a===e.session.current_input?e.session.current_input=e.session.standard_input:a===e.session.current_output&&(e.session.current_output=e.session.current_output),null!==a.alias?delete e.session.streams[a.alias]:delete e.session.streams[a.id],a.output&&a.stream.flush();var l=a.stream.close();a.stream=null,!0!==o.force&&!0!==l||e.success(r)}else e.throw_error(A.error.existence("stream",n,t.indicator));else e.throw_error(A.error.domain("stream_or_alias",n,t.indicator));else e.throw_error(A.error.type("list",i,t.indicator))},"flush_output/0":function(e,r,t){e.prepend([new P(r.goal.replace(new k(",",[new k("current_output",[new x("S")]),new k("flush_output",[new x("S")])])),r.substitution,r)])},"flush_output/1":function(e,r,t){var n=t.args[0],i=A.type.is_stream(n)?n:e.get_stream_by_alias(n.id);A.type.is_variable(n)?e.throw_error(A.error.instantiation(t.indicator)):A.type.is_stream(n)||A.type.is_atom(n)?A.type.is_stream(i)&&null!==i.stream?!0===n.input?e.throw_error(A.error.permission("output","stream",output,t.indicator)):(i.stream.flush(),e.success(r)):e.throw_error(A.error.existence("stream",n,t.indicator)):e.throw_error(A.error.domain("stream_or_alias",n,t.indicator))},"stream_property/2":function(e,r,t){var n=t.args[0],i=t.args[1],a=A.type.is_stream(n)?n:e.get_stream_by_alias(n.id);if(A.type.is_variable(n)||A.type.is_stream(n)||A.type.is_atom(n))if(A.type.is_variable(n)||A.type.is_stream(a)&&null!==a.stream)if(A.type.is_variable(i)||A.type.is_stream_property(i)){var s=[],o=[];if(A.type.is_variable(n))for(var p in e.session.streams)s.push(e.session.streams[p]);else s.push(a);for(var l=0;l<s.length;l++){var u=[];s[l].filename&&u.push(new k("file_name",[new k(s[l].file_name,[])])),u.push(new k("mode",[new k(s[l].mode,[])])),u.push(new k(s[l].input?"input":"output",[])),s[l].alias&&u.push(new k("alias",[new k(s[l].alias,[])])),u.push(new k("position",["number"==typeof s[l].position?new T(s[l].position,!1):new k(s[l].position,[])])),u.push(new k("end_of_stream",[new k("end_of_stream"===s[l].position?"at":"past_end_of_stream"===s[l].position?"past":"not",[])])),u.push(new k("eof_action",[new k(s[l].eof_action,[])])),u.push(new k("reposition",[new 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n=t.args[0],i=t.args[1],a=A.type.is_stream(n)?n:e.get_stream_by_alias(n.id);if(A.type.is_variable(n))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_variable(i)||A.type.is_character(i))if(A.type.is_stream(n)||A.type.is_atom(n))if(A.type.is_stream(a)&&null!==a.stream)if(a.output)e.throw_error(A.error.permission("input","stream",n,t.indicator));else if("binary"===a.type)e.throw_error(A.error.permission("input","binary_stream",n,t.indicator));else if("past_end_of_stream"===a.position&&"error"===a.eof_action)e.throw_error(A.error.permission("input","past_end_of_stream",n,t.indicator));else{var s;if("end_of_stream"===a.position)s="end_of_file",a.position="past_end_of_stream";else{if(null===(s=a.stream.get(1,a.position)))return void e.throw_error(A.error.representation("character",t.indicator));a.position++}e.prepend([new P(r.goal.replace(new k("=",[new k(s,[]),i])),r.substitution,r)])}else e.throw_error(A.error.existence("stream",n,t.indicator));else e.throw_error(A.error.domain("stream_or_alias",n,t.indicator));else e.throw_error(A.error.type("in_character",i,t.indicator))},"get_code/1":function(e,r,t){var n=t.args[0];e.prepend([new P(r.goal.replace(new k(",",[new k("current_input",[new x("S")]),new k("get_code",[new x("S"),n])])),r.substitution,r)])},"get_code/2":function(e,r,t){var n=t.args[0],i=t.args[1],a=A.type.is_stream(n)?n:e.get_stream_by_alias(n.id);if(A.type.is_variable(n))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_variable(i)||A.type.is_integer(i))if(A.type.is_variable(n)||A.type.is_stream(n)||A.type.is_atom(n))if(A.type.is_stream(a)&&null!==a.stream)if(a.output)e.throw_error(A.error.permission("input","stream",n,t.indicator));else if("binary"===a.type)e.throw_error(A.error.permission("input","binary_stream",n,t.indicator));else if("past_end_of_stream"===a.position&&"error"===a.eof_action)e.throw_error(A.error.permission("input","past_end_of_stream",n,t.indicator));else{var o;if("end_of_stream"===a.position)o=-1,a.position="past_end_of_stream";else{if(null===(o=a.stream.get(1,a.position)))return void e.throw_error(A.error.representation("character",t.indicator));o=s(o,0),a.position++}e.prepend([new P(r.goal.replace(new k("=",[new T(o,!1),i])),r.substitution,r)])}else e.throw_error(A.error.existence("stream",n,t.indicator));else e.throw_error(A.error.domain("stream_or_alias",n,t.indicator));else e.throw_error(A.error.type("integer",char,t.indicator))},"peek_char/1":function(e,r,t){var n=t.args[0];e.prepend([new P(r.goal.replace(new k(",",[new k("current_input",[new x("S")]),new k("peek_char",[new x("S"),n])])),r.substitution,r)])},"peek_char/2":function(e,r,t){var n=t.args[0],i=t.args[1],a=A.type.is_stream(n)?n:e.get_stream_by_alias(n.id);if(A.type.is_variable(n))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_variable(i)||A.type.is_character(i))if(A.type.is_stream(n)||A.type.is_atom(n))if(A.type.is_stream(a)&&null!==a.stream)if(a.output)e.throw_error(A.error.permission("input","stream",n,t.indicator));else if("binary"===a.type)e.throw_error(A.error.permission("input","binary_stream",n,t.indicator));else if("past_end_of_stream"===a.position&&"error"===a.eof_action)e.throw_error(A.error.permission("input","past_end_of_stream",n,t.indicator));else{var s;if("end_of_stream"===a.position)s="end_of_file",a.position="past_end_of_stream";else if(null===(s=a.stream.get(1,a.position)))return void e.throw_error(A.error.representation("character",t.indicator));e.prepend([new P(r.goal.replace(new k("=",[new k(s,[]),i])),r.substitution,r)])}else e.throw_error(A.error.existence("stream",n,t.indicator));else e.throw_error(A.error.domain("stream_or_alias",n,t.indicator));else e.throw_error(A.error.type("in_character",i,t.indicator))},"peek_code/1":function(e,r,t){var n=t.args[0];e.prepend([new P(r.goal.replace(new k(",",[new k("current_input",[new x("S")]),new k("peek_code",[new x("S"),n])])),r.substitution,r)])},"peek_code/2":function(e,r,t){var n=t.args[0],i=t.args[1],a=A.type.is_stream(n)?n:e.get_stream_by_alias(n.id);if(A.type.is_variable(n))e.throw_error(A.error.instantiation(t.indicator));else if(A.type.is_variable(i)||A.type.is_integer(i))if(A.type.is_variable(n)||A.type.is_stream(n)||A.type.is_atom(n))if(A.type.is_stream(a)&&null!==a.stream)if(a.output)e.throw_error(A.error.permission("input","stream",n,t.indicator));else if("binary"===a.type)e.throw_error(A.error.permission("input","binary_stream",n,t.indicator));else if("past_end_of_stream"===a.position&&"error"===a.eof_action)e.throw_error(A.error.permission("input","past_end_of_stream",n,t.indicator));else{var o;if("end_of_stream"===a.position)o=-1,a.position="past_end_of_stream";else{if(null===(o=a.stream.get(1,a.position)))return void e.throw_error(A.error.representation("character",t.indicator));o=s(o,0)}e.prepend([new P(r.goal.replace(new k("=",[new T(o,!1),i])),r.substitution,r)])}else e.throw_error(A.error.existence("stream",n,t.indicator));else e.throw_error(A.error.domain("stream_or_alias",n,t.indicator));else e.throw_error(A.error.type("integer",char,t.indicator))},"put_char/1":function(e,r,t){var n=t.args[0];e.prepend([new P(r.goal.replace(new k(",",[new k("current_output",[new x("S")]),new k("put_char",[new x("S"),n])])),r.substitution,r)])},"put_char/2":function(e,r,t){var n=t.args[0],i=t.args[1],a=A.type.is_stream(n)?n:e.get_stream_by_alias(n.id);A.type.is_variable(n)||A.type.is_variable(i)?e.throw_error(A.error.instantiation(t.indicator)):A.type.is_character(i)?A.type.is_variable(n)||A.type.is_stream(n)||A.type.is_atom(n)?A.type.is_stream(a)&&null!==a.stream?a.input?e.throw_error(A.error.permission("output","stream",n,t.indicator)):"binary"===a.type?e.throw_error(A.error.permission("output","binary_stream",n,t.indicator)):a.stream.put(i.id,a.position)&&("number"==typeof a.position&&a.position++,e.success(r)):e.throw_error(A.error.existence("stream",n,t.indicator)):e.throw_error(A.error.domain("stream_or_alias",n,t.indicator)):e.throw_error(A.error.type("character",i,t.indicator))},"put_code/1":function(e,r,t){var n=t.args[0];e.prepend([new P(r.goal.replace(new k(",",[new k("current_output",[new x("S")]),new k("put_code",[new x("S"),n])])),r.substitution,r)])},"put_code/2":function(e,r,t){var n=t.args[0],i=t.args[1],a=A.type.is_stream(n)?n:e.get_stream_by_alias(n.id);A.type.is_variable(n)||A.type.is_variable(i)?e.throw_error(A.error.instantiation(t.indicator)):A.type.is_integer(i)?A.type.is_character_code(i)?A.type.is_variable(n)||A.type.is_stream(n)||A.type.is_atom(n)?A.type.is_stream(a)&&null!==a.stream?a.input?e.throw_error(A.error.permission("output","stream",n,t.indicator)):"binary"===a.type?e.throw_error(A.error.permission("output","binary_stream",n,t.indicator)):a.stream.put_char(o(i.value),a.position)&&("number"==typeof a.position&&a.position++,e.success(r)):e.throw_error(A.error.existence("stream",n,t.indicator)):e.throw_error(A.error.domain("stream_or_alias",n,t.indicator)):e.throw_error(A.error.representation("character_code",t.indicator)):e.throw_error(A.error.type("integer",i,t.indicator))},"nl/0":function(e,r,t){e.prepend([new P(r.goal.replace(new k(",",[new k("current_output",[new x("S")]),new k("put_char",[new x("S"),new 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